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-rw-r--r--third_party/nix/mk/jars.mk36
1 files changed, 36 insertions, 0 deletions
diff --git a/third_party/nix/mk/jars.mk b/third_party/nix/mk/jars.mk
new file mode 100644
index 000000000000..c8513e664ed5
--- /dev/null
+++ b/third_party/nix/mk/jars.mk
@@ -0,0 +1,36 @@
+define build-jar
+
+  $(1)_NAME ?= $(1)
+
+  _d := $$(strip $$($(1)_DIR))
+
+  $(1)_PATH := $$(_d)/$$($(1)_NAME).jar
+
+  $(1)_TMPDIR := $$(_d)/.$$($(1)_NAME).jar.tmp
+
+  _jars := $$(foreach jar, $$($(1)_JARS), $$($$(jar)_PATH))
+
+  $$($(1)_PATH): $$($(1)_SOURCES) $$(_jars) $$($(1)_EXTRA_DEPS)| $$($(1)_ORDER_AFTER)
+	@rm -rf $$($(1)_TMPDIR)
+	@mkdir -p $$($(1)_TMPDIR)
+	$$(trace-javac) javac $(GLOBAL_JAVACFLAGS) $$($(1)_JAVACFLAGS) -d $$($(1)_TMPDIR) \
+	  $$(foreach fn, $$($(1)_SOURCES), '$$(fn)') \
+	  -cp "$$(subst $$(space),,$$(foreach jar,$$($(1)_JARS),$$($$(jar)_PATH):))$$$$CLASSPATH"
+	@echo -e '$$(subst $$(newline),\n,$$($(1)_MANIFEST))' > $$($(1)_PATH).manifest
+	$$(trace-jar) jar cfm $$($(1)_PATH) $$($(1)_PATH).manifest -C $$($(1)_TMPDIR) .
+	@rm $$($(1)_PATH).manifest
+	@rm -rf $$($(1)_TMPDIR)
+
+  $(1)_INSTALL_DIR ?= $$(jardir)
+
+  $(1)_INSTALL_PATH := $$($(1)_INSTALL_DIR)/$$($(1)_NAME).jar
+
+  $$(eval $$(call install-file-as, $$($(1)_PATH), $$($(1)_INSTALL_PATH), 0644))
+
+  install: $$($(1)_INSTALL_PATH)
+
+  jars-list += $$($(1)_PATH)
+
+  clean-files += $$($(1)_PATH)
+
+endef